Glazing-bar and process of making the same



J. T. HUTCHINSON, V. SHAW AND- F. BARNES. GLAZING BARAND PROCESS OF MAKING THE SAME. APPLICATION FILED MAR. 2s, 1.918. RENEWED OCT. 16. 1920.

Patented Feb. 1,1921.

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J. T. HUTCHINSON, V. SHAW AND F. BARIWIES.

GLAZING BAR AND PROCESS OF MAKING THE SAME. APPLICATION FILED mm. 28,.1918- mzrizww OCT. 16. 1920.

1,367,187.. Patented Feb.1,1921.

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Inventors.

Wrnon 5/5017" Fan? Barnes IRS/5.

UNITED STATES PATENT OFFICE.

JOSEPH TELFEB HUTCHINSON', VERNON SHAW, AND FRANK BARNES, OF VAN GOUVEE, BRITISH COLUMBIA, CANADA, ASSIG-NORS TO SIEELEAD SKY- LIGHT 00., OF SEATTLE, WASHINGTON, A COEIEORATION.

GLAZING BAR AND PROCESS OF MAKING THE SAME.

Specification of Letters Patent.

Application filed March 28, 1918, Serial No. 225,283. Renewed October 16, 1920. Serial No. 417,483.

To a-ZZ w rwm it may concern:

Be it known that we, Josnri-r TnLrnn lilU'lCHlNSON, l nnnon SHAW, and Funnel Bnnivns, respectively, subjects of the King of Great Britain, and residents of the city of Vancouver, in the Province of British lolumbia, Canada, have jointly invented certain new and useful Improvements in Glazing-Bars and Processes of Making the Same, of which the following is a specification.

Our invention relates to improvements in the covering of bars with lead or other suitable material in the production of what are known to those skilled. in the art as glazing bars, and the object of our in vention is to provide a die for use in the formation of the lead cover, and for the bet ter illustration of the invention such die is shown in the accompanying drawings in whieh-- Figure 1 is a plan view of the die.

Fig. 2 is an elevation, in part section.

Fig. 3 is a plan view of the die plate, the core being shown in cross section.

Fig. 41 is an elevation of the die core and bridge. a

Fig. 5 is a cross section of the lead cover.

Fig. 6 is a cross section of the finished glazing bar.

Fig. 7 is a sectional view of the die and associated parts.

Similar figures of reference indicate similar parts throughout the several views.

The die which is formed of any suitable material and as shown in Figs. 1 and 2, consists of a member 1 formed cylindrical on its outside, and provided at one end with an exteriorly threaded extension 2 by means of which. it may be detachably secured to the operating plunger. A bell mouth 3 is formed in the opposite end of the member 1, which mouth extends thereinto approximately half the length of the member, terminating in an anular seat portion 4, the diameter of which is equal to the diameter of the inmost end of the bell mouth, and in the annular portion is removably disposed a die plate 5, the thickness of which plate is substantially equal to the depth of the annular portion 4.

The die plate 5 is provided centrally with a triangular shaped opening 6 from the sides of which opening intermediate their length extend outwardly slots 7 and 8, while portions 9 and 10 are cut out of the plate,

andthe base angles flattened, as also are portions 11. and 12 whereby the base line of the opening is extended beyond the base anglesall as shown in Fig. 3. The opening so formed is extended inwardly from the face of the plate a short distance, being then flared out, and extended through the plate, as indicated by the numeral 13, to provide clearance for the lead cover as it passes through the opening 6, as hereinafter described.

1 1 indicates an opening formed in the remaining portion of the member 1, which opening similar to the die-plate open ing 13.

The core for the opening 6 is constructed preferably as shown in Fig. 4, and consists of a member 1.5, of the same shape in cross section as the opening 6, but of less measurement than the opening, the difference being equal to the thickness of metal designed to pass through the opening be tween its sides and baseand the facesof themember 15, and in order to maintain the member 15 positively in position centrally' of the opening 6, so that a uniform thickness of metal will be obtained it is provided with an extension 16 from which project arms 17, 18, 19, and 20, forming a bridge adapted to bear on the face of the die plate 5 and the ends of which arms are designed to fit the bell mouth 3, being held in place by screws 21 threaded through the walls of the member 1 to engage on the ends of the respective arms, as shown in Fig. 2.

Dowel pins 33, are provided in the two opposite arms 18 and 20 for engagement with suitable holes in the plate 5, while similar dowels 34 are secured into the plate 5, adapted to engage suitable holes in the member 1, as shown in Figs. 1, and 2, these dowels being provided for the purpose of positioning the several parts one with the other when the die is being put together.

In operation the die, assembled as shown in Fig. 2, is secured to a cylindrical plunger 35 as indicated in Fig. 7 having a bore not less than the-opening 13 of the member 1. The die is then inserted, bell mouth down,

into the lead pot 36 containing the viscid formityin the thickness metal from which the cover is to be formed, and as it is forced downwardly thereinto, the viscid lead passes up through the die plate and emerges in the cover form shown in Fig. 5, that is, in a length according to the capacity of the lead potand transversely triangular in shape having outstanding wings 22 and 28, extending intermediate the length of its sides 24: and 25, and outstanding walls 26 and 27 adjacent its base angles 28 and 29, these angles being flattened and the base extended at each end beyond the flattened angles, as at 30 and 31. Into this cover form is inserted a steel T bar 32 and the form is then deformed so as to envelop or hug the T whereby the wings 22 and 23 take a horizontal position,- the walls 26 and 27 take a vertical position to form a main gutter and the extensions 30 and 31 an upwardly inclined position to form condensation gutters.

It will be seen, therefore, that we have devised a process for making glazing bars and a means for carrying out the same which in sures great economy, and complete uniof the bar cover.

What we claim as our invention is 1. A die plate having a central triangular shaped opening from which extend into the plate body intermediate the length of its sides and at the bottom of its sides respectively, slots outstanding from said sides and also slots continuous with the base of the opening, a core member complementary to and of less cross sectional area than the opening, and means for securing said core centrally of the opening.

2. A cylindrical member having in one end a'bell mouth extending intermediate the length of said member and terminating in an annular seat, a die plate mounted in said seat having a central opening from which extend into the plate body intermediate the length of its sides and at the bottom of its sides respectively slots outstanding from said sides and also slots continuous with the base of the opening, a core member complementary to and of less cross sectional area than the opening, said member extending into the bore formed in the cylindrical member of corresponding shape to the die plate opening, arms on said core member designed to bear on said die plate and on the said bell mouth wall, and means for holding said arms against movement.

3. A cylindrical member having in one end a bell mouth extending intermediate the length of said member and terminating in an annular seat and provided at its other end with an exteriorly threaded. extension, a die plate mounted in said seat having a flared central opening from which extend into the body of the plate intermediate the length of its sides and at the bottom of its sides respectively slots outstanding from said sides and also slots continuous with the base of the opening, a core member complementary to and of less cross sectional area than the opening, said member extending into a bore formed in the cylindrical member of corresponding shape to the die plate opening and with which the flared end of the said opening registers, integral cross arms on the head of the core member designed to bear on the die plate and on the bell mouth wall, and means for securing said arms to said wall.

Dated at Vancouver, 13. 0., this 13th day of March, 1918.

JOSEPH TELFER HUTCHINSON. VERNON SHAW. FRANK BARNES. 

